C. Gremmen et al., Enantiopure tetrahydro-beta-carbolines via Pictet-Spengler reactions with N-sulfinyl tryptamines, ORG LETT, 2(13), 2000, pp. 1955-1958
The influence of N-sulfinyl chiral auxiliaries on the stereochemistry of th
e Pictet-Spengler reaction has been investigated. From enantiopure (R)-N-be
ta-toluenesulfinyltryptamine a new and efficient route to enantiopure tetra
hydro-beta-carbolines has been established.